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Altera_Forum
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16 years ago

Nios interrupt response time

I have a custom SOPC component which has an interrupt sender (irq_n) in it's avalon interface. In my SOPC component HDL I set the irq_n line low, which causes a Nios interrupt handler to fire. In the...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I have the same problem, I use Nios 2 /f 9.1 with EIC and shadow registers enabled, I also add a VIC in the SOPC system. My memory is a 512MB DDR2-400 unbuffered DIMM. Still, it can't respond to USB setup package interrupt on time, which leads to the USB interface to be suspended by the host. Somebody help!